Section 6(4)(b) in The Rajasthan Municipal (New Pay Scales) Rules, 1975
(b)In cases where an efficiency bar has been enforced against a member drawing pay in the existing pay scale prior to [1-9-1961] [Substituted by Rajasthan Gazette Part IV-C, dated 12-8-1982/781, page 81.] or the date from which the member opt the scales such member after this initial pay, has been fixed in the New Pay Scales shall not draw increment unless specifically permitted by the Director.